Amazon.com: MOUNTAIN MEN Auger Bit Right Hand Metric Thread Taps M3 M4 M5 M6 M7 M8 M10 M12 M14 HSS Screw Tap Drill Bit Straight Flute Screw Thread Tap Drill 1pcs (Color :
Metric Machine Tap Left Hand Thread Tap Drill Bit M3 4 5 6 8 10 12 14 16 18 20 | eBay
Hanson 1788680 Pts Tap Plus Drill Combo 6mm-1.00/Number 9 for Tap Die Extraction - - Amazon.com
IRWIN Hanson 2-Pack Metric Tap and Drill Set in the Tap & Drill Sets department at Lowes.com